[NOTE: The following article is a press release issued by the aforementioned network and/or company. Any errors, typos, etc. are attributed to the original author. The release is reproduced solely for the dissemination of the enclosed information.]

ZELENA THREATENS TO KILL HENRY IF HOOK - WHOSE LIPS HAVE BEEN CURSED - DOESN'T KISS EMMA AND DRAIN AWAY HER MAGICAL POWERS, AND IN THE FAIRY TALE LAND OF THE PAST, SNOW AND CHARMING GO IN SEARCH OF GOOD WITCH GLINDA TO HELP
THEM DEFEAT ZELENA, ON ABC'S "ONCE UPON A TIME"

"A Curious Thing" - Zelena threatens to kill Henry if Hook - whose lips have been cursed by the Wicked Witch -- doesn't proceed with kissing Emma, which will drain all of her magical powers away, and things begin to heat up between Regina and Robin Hood. Meanwhile, back in the Fairy Tale Land that was during the past year, Snow and Charming go in search of Glinda, the Good Witch of the South, to see if she can help them defeat Zelena, and the curse that will ultimately send the Fairy Tale characters back to Storybrooke is cast -- but from an unlikely source, on "Once Upon a Time," SUNDAY, APRIL 27 (8:00-9:00 p.m., ET) on the ABC Television Network.

DESCRIPTION:(from ABC's press release, May 2014) Master storytellers Edward Kitsis and Adam Horowitz ("Lost," "Tron: Legacy") invite everyone to join Emma Swan, Snow White, Prince Charming, The Evil Queen, Hook and all the other resident fairy tale characters as they prepare to defend themselves against a magical force from the past that's too dark and unpredictable even for Rumplestiltskin - The Ice Queen. Welcome to Storybrooke, Maine, a small town that probably won't show up on your GPS, but it's a magical place to visit. Reality and myth merged after Emma broke Regina's curse, which had deprived the fairytale characters of their memories and trapped them in our modern world. When they finally regained their identities, our heroes were dismayed to discover that they weren't transported back to Fairy Tale Land. To make matters worse, Rumplestiltskin - aka Mr. Gold - decided to escalate his power struggle with Regina by introducing magic into the town. But this is our world, and magic always has a tendency to yield unfathomable consequences.